Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Bijan, Arjomandy"'
Autor:
Geoffrey Ibbott, Joo Young Kim, Yuki Kase, Pete J. Koss, Dong Ho Shin, Bijan Arjomandy, Jeong Eun Rah, Do Hoon Oh, Zuofeng Li, Se Byeong Lee, James McDonough, Tae Hyun Kim, Sung-Yong Park, Liyong Lin
Publikováno v:
Radiation Measurements. 59:66-72
Purpose We evaluated the glass dosimeter suitability as an external audit program in proton therapy beam. A feasibility test of the glass dosimeter postal dose intercomparison was performed for high-energy proton beam use in radiation oncology with t
Publikováno v:
Medical Physics. 39:912-921
Purpose: One of the fundamental parameters used for dose calculation is percentage depth-dose, generally measured employing ionization chambers. There are situations where use of ion chambers for measuring depth-doses is difficult or problematic. In
A quality assurance device for the accuracy of the isocentres of teletherapy and simulation machines
Autor:
Bijan Arjomandy, Martin D. Altschuler
Publikováno v:
Physics in Medicine and Biology. 45:2207-2217
A new quality assurance device has been designed to measure the location and wobble of the radiation isocentre of linacs and simulation machines as a function of gantry rotation. The radiation isocentre is the intersection in space of the central x r
Publikováno v:
Medical physics. 39(2)
One of the fundamental parameters used for dose calculation is percentage depth-dose, generally measured employing ionization chambers. There are situations where use of ion chambers for measuring depth-doses is difficult or problematic. In such case
Autor:
Bijan, Arjomandy, Narayan, Sahoo, George, Ciangaru, Ronald, Zhu, Xiaofei, Song, Michael, Gillin
Publikováno v:
Medical physics. 37(11)
The purpose of this study was to determine whether a two-dimensional (2D) ion chamber array detector quickly and accurately measures patient-specific dose distributions in treatment with passively scattered and spot scanning proton beams.The 2D ion c
Autor:
Bijan, Arjomandy, Ramesh, Tailor, Aman, Anand, Narayan, Sahoo, Michael, Gillin, Karl, Prado, Milos, Vicic
Publikováno v:
Medical physics. 37(5)
Since the Gafchromic film EBT has been recently replaced by the newer model EBT2, its characterization, especially energy dependence, has become critically important. The energy dependence of the dose response of Gafchromic EBT2 film is evaluated for
Autor:
Eric E, Klein, Joseph, Hanley, John, Bayouth, Fang-Fang, Yin, William, Simon, Sean, Dresser, Christopher, Serago, Francisco, Aguirre, Lijun, Ma, Bijan, Arjomandy, Chihray, Liu, Carlos, Sandin, Todd, Holmes
Publikováno v:
Medical physics. 36(9)
The task group (TG) for quality assurance of medical accelerators was constituted by the American Association of Physicists in Medicine's Science Council under the direction of the Radiation Therapy Committee and the Quality Assurance and Outcome Imp
Autor:
Bijan, Arjomandy, Narayan, Sahoo, X Ronald, Zhu, John R, Zullo, Richard Y, Wu, Mingping, Zhu, Xiaoning, Ding, Craig, Martin, George, Ciangaru, Michael T, Gillin
Publikováno v:
Medical physics. 36(6)
The number of proton and carbon ion therapy centers is increasing; however, since the publication of the International Commission on Radiation Units and Measurements report, there has been no dedicated report dealing with proton therapy quality assur
Autor:
Narayan, Sahoo, X Ronald, Zhu, Bijan, Arjomandy, George, Ciangaru, MingFwu, Lii, Richard, Amos, Richard, Wu, Michael T, Gillin
Publikováno v:
Medical physics. 35(11)
The purpose of this study is to validate a monitor unit (MU) calculation procedure for passively scattered proton therapy beams. The output dose per MU (d/MU) of a therapeutic radiation beam is traditionally calibrated under specific reference condit
Publikováno v:
Medical physics. 35(9)
Two-dimensional ion chamber arrays are primarily used for conventional and intensity modulated radiotherapy quality assurance. There is no commercial device of such type available on the market that is offered for proton therapy quality assurance. We